Telegraph printer



April 10, 1928.

H. L. KRUM TELEGRAPH PRINTER Filed June 15. 1924 6 Sheets-Sheet 1 Ilwmfov': Howard H. L. KRUM April 1o, 1928. 1,665,594

TELEGRAPH PRINTER Filed June 15. 1924 6 Sheets-Sheet 2 April 1o, 192s.

H. L. KRUM TELEGRAPH PRINTER Filed June 13. '1924 6 Sheets-Sheet 3 l vApril 1o, 1928.

H. L. KRUM TELEGRAPH PRINTER Filed June l5, 1924 6 Sheets-Sheet 4 April1o, 192s. 1,665,594

H. L. KRUM TELEGRAPH PRINTER Filed Jun3 l5 1924 6 Sheets-Sheet 5 L() Siq) Sl w qq o) L\ N og il? L() Q Q Q N .Q g1( N LQ Howard L-/T/r'um @Wr/@April 10, 1928. 1,665,594

H. l.. KRUM TELEGRAPH PRINTER Filed June 13, 1924 6 Sheets-Sheet 6 SX lHoward .//rum'z, @Cy/MMMMVMTLMMS Patented Apr. l0, 1928.

UNITED STATES vimxrEN'r OFFICE- HOWARD L. IIRUM, OF CHICAGO, ILLINOIS,ASSIGNOR, -BY MESNE ASSIGNMENTS, TO MORKUM-KLEINSCHMIDT CORPORATION, FCHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

TELEGRAPH PRINTER.

yApplication led June 13, 1924. Serial 110.719,76.

The invention relates to telegraph printers and more particularly to atype bar printer in which the operation is effected by a motor drivencam shaft under` control of a set of permutation bars and the inventionseeks to provide an improved printer of this sort, and further, toimprove the construction shown in the prior application filed in the U.S. Patent Office June 18, 1921, by Sterling Morton and myself, SerialNo. 478,659. The invention consists in the features of improvementhereinafter set forth, illustrated in the preferred form in theaccompanying, drawings, and more particularly pointedout in the appendedclaims. i

On the drawings:

Fig. 1 is a view in vertical section from front to rear of the improvedmachine.

Fig. 1a is a detail view of the adjusting means for the striker barspring.

Fig. 2 is'a view similar to Fig. 1, illustrating a` modified form of`carriage and showing one of the type bars in shifted position.

Fig. 2a isa detail View in front elevation of parts shown in Fig. 2.

Fig. 3 is a view partially in plan and partially in horizontal section,of the operating mechanismat the rear of t-he machine frame.

p Fig. 3a is a detail view in elevation of the bracket carrying theselector mechanism.

Fig. 4 is a detail view in rear elevation of the selector mechanism thatset-s the lpermutation bars and the mechanism for controlling itsoperation.

Figs. 4 and 4" are detail views of cams shown in Fig. 4.

Fig. 4 is a detail elevation of the clutchcontrolling or 6th pulsemagnet and paris associated Ytherewith.

AIfigzgelis a plan view of the clutch.

Fig. 4"is a detail view of the signalliing device. 45( Fig. 5 is adetail view in rear elevation illustrating the spacing mechanism. v

Fig. 5a is a-- side elevation of the spacing mechanism.

Fig. 5l is an elevation of the oase shift 50 mechanism.

Fig. 6 is a detail elevation of the line spacing devices.

Fig. 6il is a detail rear elevation of the carriage return mechanism.

The frame comprises a base 10, upright corner posts 11 and a top plate12 removably secured to the upper ends of the posts 11 by screws 13.Preferably, as shown in Figs. land 5, a cylindrical paper platen 14 isemployed. This platen is slidably mounted upon a square shaft 15 theends of which are journaled in brackets 16 extending outwardly andupwardly from the opposite sides of the top plate 12. Reduced portionsat the ends of the cylindrical platen (see Fig. 5) are journaled in endplates 17 and the latter are connected by front and rear bars 18 and 19(se'e Fig. 1) and these end plates support suitable paper feeding andguiding devices. The rear bar 19 forms a guide for the paper carriageand engages a roller 20 (see Fig. 5a) on the rear end of a short shaft21 that forms part of the letter spacing mechanism. This shaft isjournaled in a suitable bearing formed in the top plate and adjacent-the roller 20 carries a feed pinion 22 which meshes with a rack 23fixed to the rear bar 19 of the paper carriage.

In Figs. 2 and 2a a modified form of platen is provided which may beemplo ed if it is desired to print upon a tape. his platen is mountedupon a top plate 12a and may be readily substituted for the top platepreviously described. The roller platen 24 is preferably in the form ofa segment of a sphere and is fixed to a vertical shaft 25, the latterbeing journaled in its lower end in a bracket- 26 rising from the topplate 12"` the bearing being-preferably so disposed that the shaft 21 isinclined slightly toward the rear. A paper guide 27 and feed roll 28cooperate with the platen and hold the paper tape in proper relationtherewith. Preferably the platen and feed roll have intermeshing gears29 and 30 so that the feed roll is positively driven. The platen isadvanced step by step to effect the letter spacing from the feed shaft21 similar to that previously described, but in this form the pinion 22on the feed shaft-meshes With a pinion 31 on the rear end of a shortshaft 32 journaled in the top plate. A beveled pinion 33 on the forwardend of the shaft. 32 meshes with a beveled gear 34 fixed to the rollerplaten.

The type bars 35 are carried by suitable hangers on a segment 36, thelatter being arranged in an inclined osition with the pivots of the typebars in ront of and below the cylindrical platen 14 so that they swingupwardly and rearwardly and strike the front of the cylindrical platen'at a point somewhat above the horizontal plane extending through itsaxis. To permit the removal of the top plate 12 and the cylindricalplaten 14 and permit the substitution of the top plate 12 and the rollerplaten, the latter, in order to properly cooperate with the same set oftype bars is, as stated, the section of a sphere and is mounted upon anaxis that is slightly inclined to the vertical.

Upright sub-levers 37 arranged in rear of the type bar segments areconnected at their upper end to the individual type bars by links 38.The sub-levers 37 are pivoted adjacent their lower ends upon atransverse rod 39 and the extreme lower ends of the sublevers areprovided with pivot pins engaging slots in the forward ends-of'ayseriesxof actuating bars 40. Individual springs, 41 connected to theforward endsof the actuating bars serve to restore the type bars andactuating bars to their normal positions shown in Fig. 1, and to holdthem in such positions. It should be particularly noted that the springs41 tend to move the actuating bars rearwardly and also tend to move themupwardly into engagement with the notched lower edges of a set ofpermuta- `tion bars 42.

The ermutation bars are preferably five in num er and extend inhorizontal series above the rear ends of the actuating bars 40. At theirends the permutation bars 42 are guided in slots formed in the endportions of a transverse bracket 43 and are held in place in the guideslots by pieces 44. One of the pieces 44 forms a stop and cooperateswith lugs 45 on the permutation barsto limit their longitudinal movementand a pivoted lock 46 cooperates with notches in the permutation bars tohold them, each in either one or two positions. The permutation bars, asusual, are adapted to be set in different combinations in accordancewith the different code signals and are so notched on their lower edgesthat in any setting one of the actuator y bars 4() can rise into thenotches thereof.

The rear ends of the actuator bars are normally held depressed by atransverse bail or drop bar 47 and mostof the bars are provided withshoulders and, when any actuator bar is selected and rises into thenotches of the permutation bars, its shoulder extends into the path ofmovement of an actuating bail 48,

The bails 47 and 48 are fixed to rock shafts 50 'and 51, shaft 50 beingjournaled in a bracket 52 fixed to the rear of the base 10 and shaft 51being journaled in .the bracket 43. The bails 47 and 48 are providedwith adjustable working edge portions and are connected by adjustablelinks 53 'to arms or rock l ers 54 and 55 loosely mounted on atransverse pivot shaft 56 that is carried in the upper 'portion of thebracket 43. Rollers mounted on these arms cooperate respectively with adrop bar cam 57 and with a striker or actuating cam 58 fixed to atransverse main operating shaft 59 that is journaled in the bracketk 43below the pivot shaft 56. The striker bail rocker also has a forwardlyextending arm 60 which cooperates with a cam 61 on the operating shaft(see Figs. 1 and 3). Springs 62 and 63 connected respectively to thebails 47 and 48 hold the parts in the normal or idle position shown inFig. 1 with the rollers on rockers 54 and 55 pressed into engagementwith the cams 57 and 58 respectively, and these springs shift or actuatethe bails when the high portions of the cams 57 and 58 pass beyond therollers of the corresponding rockers. Preferably. as shown, in Fig. 1,the striker bail spring 63 is connected at its lower end to a bell crank64 which may be adjusted to Vary thetension of the spring by a screw 65.

The type bar operating mechanism is shown in normal position in Fig. 1with the high portions ofthe cams 57 and 58 engaging the correspondingrockers. In this position the drop bail 47 holds 'the rear ends of theactuating bars 40 depressed and the striker or actuating bail 48 is heldin its rearmost position. When the permutation 'bars are set in responseto a code combination, a single revolution is Vimparted to the operatingshaft 59 in the direction indicated by the arrow in F 1 and 2. Duringthe initial portion of this revolution the drop bail 47 is lifted by itsspring and the actuator bars are lifted by their springs.'the selectedbar rising into the notches of the permutation bars with its shoulder infront of the striker bail 48 and then. when the high portion of the cam58 passes beyond the roller of the striker bail rocker, the striker baris swung forwardly by its spring 63. correspondingly moving the selectedactuating bar and throwing the associ ated type bar to the printingpoint. The upward movement of the selected actuator bar is limited by astop bar 66 which is mounted on the forward face of a comb bar 67. Thelatter is fixedf at itsends to the bracket 43 and forms a guide for therear ends of the actuating bars. The stop bar 66 is adjustably connectedto the comb bar, and so limits the upward movement of the selectedactuator bar that, as the striking bail swings on its arc, it will bedisengaged from the shoulder of the selected actuator bar, as

shown in Fig. 2v, slightly before the corresponding type reaches theprinting point, the

. movement of the type being completed by the momentum of the movingparts.

After'the high portion of cam 58 has passed beyond the roller of thestriker bail rocker, the cam 58 engages the roller of the arm 60 andv ifthe spring 63 fails to complete theoperating movement of the strikerbar, such movement will be positively completed by the cam 61. Thespring actuation of the striker bar is entirely sufficient. to effectthe operation of the actuator bars and type bars and this positiveoperation of the striker bar is only required when it operates certainof the function mechanisms that offer considerable resistance.

The setting of the permutation bars 42 is effected by a correspondingseries of selectors or levers 68 (see Fig. 4) which are pivotallymounted in slots in the lower end portion of the bracket 43. Springs 69connected to the selecting levers tend to move the latter and theassociated permutation bars from their normal retracted positions totheir advanced positions and these springs are heavy enough to overcomethe return spring 70 connected to the permutation bars. But normally theselectors 68 are held retracted by a set of spring-pressed latches 7l,the lower ends of which engage the lower ends of the selecting leversand lock them in retracted position. The latches are adapted to betripped by a set of springpressed plungers 72 mounted in a bracket 7 8and the latter in turn are controlled by the armatures 74 of a set ofselecting magnets 75 also mounted on the bracket 73. The selectingmagnets are varibly operated as usual in different combinations inresponse to the selecting intervals or units of the received signals,and correspondingly trip the latches 7l to permit the operation of theselecting llevers by their springs 69. At the end of each signal a 6thpuIseor operating magnet 76 is energized.

In the construction shown, the operating magnet`76. is carried by abracket 77 on one side of the machine above the end of the mainoperating shaft 59. Its springheld armature 78 is pivoted between itsends and forms a latch .that normally holds a clutch throw-out lever 79in its depressed position with its spring 80 under tension. In itsdepressed position a V-shaped notch or seat (see Fig. 4d) in thethickened end portion of the lever 79 engages a correspondingly shapedlug 81 on the driven member 82 of a toothed clutch. The driving member83 of the clutch is loosely mounted on the shaft and is connected byintermeshing beveled gears 84 to the shaft of a small electric motor 85by which it is constantlyy rotated when the machine is in operation. Thedriven clutch member 82 is keyed to a sleeve 8G on the shaft that isfree to shift axially into and out of engagement with the driving clutchmember and is pressed by a spring 87 toward its engaged position.Normally, however, the clutch is held open by the lever 79. Whentheoperating magnet 76 is energized the armature latch 78 releases theclutch throw-out lever 79, the latter is lifted by its spring 80 and theclutch members are engaged or closed by the spring 87 to start theoperating shaft in motion. At the end of the revolution of the shaft. acam 88 thereon engages a roller on an arm depending from the throw-outlever 79 and restores this lever to its depressed position and intoengagement with the armature latch 78. As the revolution is completed,the V-shaped or beveled lug 81 engages the beveled edge of its seat inthe lever 79 and the clutch members are-disengaged.

If desired, a cut-out may be provided for preventing the operation ofthe shaft 59 when the magnet 76 is energized unless one of the selectingmagnets 75 has previously been operated. For this purpose a lever 89 isnormally spring-held in position with one end engaging the lower end ofthe armature latch 78 to hold it against movement. But. if one of theselecting levers 68 is shifted, it engages the bent lower end of a link90 and shifts the cut-out lever 89 to permit the operation of thearmature latch.

The main operating shaft, in addition to the cams already referred to,carries cams 91 and 92, and a cam 93 (see Figs. 2, 4, 4a, 4b and 5a).The cam 91 controls the permutation bar lock lever 46 and in the normalor idle position of theoperating shaft holds the lock lever released, asshown in Fig. 4, so that the springs 70 tend to hold the permutationbars toward the right when viewed from the rear as in Fig. 4. A spring94 holds a roller on the lock lever 46 in engagement with the peripheryof the cam 91.

The cam 92 controls a bell crank lever 95 the lower end of which isprovided with a bar 96 for engaging the selecting levers 68. andrestoring them into engagement with their latches 71. The horizontal armof the bell crank lever is lpreferably provided with an adjustable screw97 which engages an arm 98 loosely mounted on the pivot of the level'and rhaving a roller engaging the cam 92. A spring 99 connected to thelever maintains the adjusting screw 97 in engagement with the arm 98 andalso holds the roller on the latter in. engagement with the cam. Bymeans of the screw the position of the restoring bar v96 can beadjusted.

The cam 93 operates a letter spacing rocker 100 mounted on the pivotshaft 56 and provided at its rear end with a vertically disposedadjustable screw 101. The latter is arranged to engage the lower end ofa plunger 102 which is slidably mounted in a guide-way or casing 103which is formed upon a bracket 104 depending from the top plate 12. Acover plate 105 (see Fig. 6) holds the plunger in the guide-Way and aspring 106 connected to the plunger' and cover plate forces the plungerdownwardly into engagement with the stop screw 101 and holds the rolleron the rocker 100 against the periphery of the cam 93. A spring-heldfeeding dog 107 pivoted upon the upper end of the plunger' is arrangedto engage a ratchet wheel 108 on the rear end of the letter space feedshaft 2l. A springheld holding dog 109 pivoted 011 the bracket 104cooperates with the ratchet wheel.

The normal or zero position of the cams on the main operating shaft areshown in Figs. l, 4, 4b and 5, and is also indicated in the developmentof the cams in Fig. 2*. IVhen one or more of the selecting levers 68have been released to shift the corresponding permutation bars inresponse to a received signal, the main operating shaft 59 as describedis thrown into operation. As soon as it starts to move, cam 91 permitsthe engagement of the latch lever 46 with the permutation bars to holdthem in set position. Immediately thereafter an abrupt shoulder 92a ont-he cam 92 permits the quick shift of the lever 95 by means of itsspring 99 and the shifted selecting levers are re-engaged with theirlatches. The re-setting lever 95 is thenmoved back against the tensionof its spring 99 away from the selecting levers 68 by the inclinedportion 92b 'of the cam 92. As soon as the resetting lever is movedslightly away from the selecting levers, the latter are in condition tobe released from their latches in accordance with the succeed- `ingsignal, and during the time that the shaft 59 is completing the printingof the character corresponding to the setting of the permutation bars42.

On the continued movement of the shaft, release or drop bail 47 islifted and the actuating bars are moved against the permutation bars bytheir springs 41, the selected bar moving into the notches of thepermutation bars and bringing its shoulder into the path of movement ofthe striker bail 48. Then, as the inclined portion 58a of the cam 58moves beneath the roller of the rocker 55, the spring 63 will actuatethe striking bail and throw the selected type to the printing point. Asalready noted, the bail disengages the shoulder of the selectedactuating bar before the type reaches the printing point and the latterportion of this movementV is effected by the momentum of the movingparts. The type bar spring 41 is so arranged that it offers littleresistance to the upward throw of the type bars but istensionedsuiciently to promptly restore the type bars and the associatedactuating bar. While the inclined portion 58 of the cani 58 controls theoperation of the striker bail spring 63 it permits the sufficientlyquick operation o this spring to effect the operation of the type bars1n the manner described. At the end of the first half of the revolutionof the shaft 59, spacing cam 93 lowers the plunger 102 so that thefeeding dog 107 engages the next succeeding tooth and, during the secondhalf of the revolution of the shaft, the cam again elevates the plunger'and advances the carriage one step in letter space direction. At the endof the revolution of the shaft 59, the roller on the spacing rocker 100is forced into a notch 93'a in the spacing cam and holds the shaft 59accurately in zero or idle position. As the Y roller drops into thenotch the feeding dog moves away from one of the teeth of the ratchetwheel and a tooth on the latter snugly engages a holding dog 109. It isnoted that the holding dog always positions the carriage as the platenreceives the impact of the type and so insures ood spacing. Also as theshaft approaches tie end of its revolution, the releasing and strikingbailsy are restored to their normal positions and just prior to thecompletion of the movement of the operating shaft, the permutation lock46 is released andthe latter, if they have been shifted, can be restoredby their springs 70.

In the meantime, if the levers 68 have been set according to a signal,this setting will be transferred to the permutation bars as soon as thepermutation latch 46 is thus released. That is to say, if one of theper'- mutation bars yhas been advanced and theV next signal alsorequires that it beI shifted, it will be retained in its advanced orshifted position by the corresponding selecting 1e- Aver and will not bereturned to normal by its spring 70. It is also noted that the selectinglevers are normally spaced from the permutation bars, so that the leverscan be set for operation even though the corresponding bar is locked inposition. In such a case, the bar will be shifted as soon as it isreleased.

The five bars at the right hand side of the machine (see Fig. are notconnected to type bars but control or operate the function mechanisms.Thus the bar 40a controls the carriage return mechanism. This mechanismcomprises a cam plate 110 pivoted 0n the feed shaft 21 which, whenrotated in right hand direction (when viewed from the rear asin Fig. 6")is arranged to engage pins on the feeding and holding dogs 107 and 109and disengage them from ratchet wheel 108. The carriage will then bereturned by a spring drum 111 journaled in a bracket depending from thetop plate and connected to the carriage by means of a strap 112. The camplate 110 is connected by a. link 113 to a bell crank 114 pivoted on thetop plate and, adapted to be engaged by a rod 115 which'slides through aguide arm 116 on the main frame and is connected at its lower end to alever 117 pivoted on the main frame. A spring 11'8 tends to lift thelever 117 but the latter is normally held in depressed position by apivoted springheld latch 119.

When the actuating bar 40a is selected and allowed to rise into thenotches of the permutation bars it will, as it rises into the notches ofthe permutation bars, engage and trip the latch 119 so that. the spring118 shifts they throw-out cam 110 through the medium of the connectionsdescribed ,and initiates the carriage return movement. lrVhen the cam110 is shifted, it is locked in shifted position by a spring-held Vlatch120 having a shoulder thereon arranged tor en gage Va projecting lug 121on the cam plate. The arm 117 can then be restored into engagement withits latch 119 `and this is effected by a rearwardly projecting arm 122on the striker bail 49 v(see Figs. 2 and fia). By` quickly shifting thecam plate 110 and locking it in shifted position, ample time is affordedfor the carriage return movement. The locking latch 120 is released atthe next operation of the machine when a pin 1L23 on the escapementplunger 102 engages a lug on the latch and depresses it. yThe cam plateand parts connected .thereto are then restored `by a spring 124 thatvsurrounds a rod 125 and which is lconnected to the bell crank 114. Thespring 1 18 operates the carriage release mechanism in opposition to thespring 124 and is necessarily stronger than the spring 124. A fingerpiece kon the end ofI the rod may bey used by the attendant to effectthe carriage return manually. It should be noted that the bar 40a Visnotvprovided with a shoulder and is not shifted by the striker vbaihbutmerely serves to trip the latch 119 when it is selected and lifted byitsspring into the notches of the permutation ybars.` The striker bail doeshowever reset the actuating arm 117 of the carriage return mechanism asdescribed. 4

The line space mechanism comprises a ratchet wheel 126 fixed to thesquare shaft 15 upon which the platen slides. This ratchet wheelcooperates with a detent roller 127 and with feeding and holding teethkon a dog 128. The latter is pivotally mounted upon the upper end of anarm 130 and. a spring 131. connected to the dog holds `its feeding toothin engagement with the ratchet Wheel. The arm 130 is loosely mounted ona shaft 132 on the top plate and its lower end is connected to anV arm133 by a spring 134 and this spring holds the lower'end of the arm 130in engagement with an adjusting screw 135 on the arm 133. The latterarin'is fixed to the shaft 132 and a crank 136 also fixed" to the shaftis provided with a pin which engages the notched upper end of a lever137. The latter, is pivoted on the main frame between its ends and isconnected at its lower end to the actuating bar 40. When this bar isselected, it is shifted Vby the striking lor actuating bail 48 to effectthe line .space feed.

To effect the printin`g of letters and figures, the type bar 'segment 36is guided to shift in its own plane and its lower end is connected bylinks 138 to a rock shaft 139. An arm 140 (see Fig. 5b) on the shaft isprovided with two adjustable screws 140L and 141. An arm r142 looselymounted on the rock shaft 139 is arranged to engage the screw 141 and isconnected to the rearl end of the actuating bar 40a. A pivoted lockingdog 143 is arranged toengage the head of the screw 140a when the typebar segment is lifted to its fig. shift position andso lock ,the`segment in such position. This locking dog is connected to the rearendof an actuating bar 40. If` the segment is in its normal or lowerposition and bar 40 is selected and then shifted by the striker bail,the segment will be raised yto its fig. shift position and locked insuchy position by the dog 143. The type bar segment can be restored bysimilarly selecting and actuating the bar 40. y e

The bar 40d is provided atits rear end with a spring supported belltapper 144 and, when this bar is selected and rises into the notches ofthe permutation bars, thetapper strikes a bell 145. It should be notedthat the bar 40d is not moved by the striker bail but effects theringing of the bell as soon as it is lifted by its ,spring 41. e

Preferably, the signalbalr 40d and type actuating bar 40 are arranged onopposite sidesA of the carriage feed shift bar 40e and the permutationbars are so notched that the bars 40d and 40 are both selected by thesame combination. But means are provided to prevent the operationof oneof these bars when both are thus selected. For this purpose, the fig.`shift bannis provided with a lug 146 (see Fig. 3) which cooperates withlugs 147 and ,148 fixed `respectively to the bars 40d and 40'.. Normallythe lug146 is above the lug 147 on thesignal bar 40d. But, in the fig.shift position of the bar 40", this lug will be above the lug 148 on thebar 40. The latter is connected to a type bar which has but onecharacter and will ordinarily beoperated when the signal is received forselecting both this bar and the bell actuating bar 40d. But if. the fig.shift combination is received in advance of the special combination thatselects bars 40 y and 40d, the latter will be actuated to sound thesignal. .y

To prevent the disengagement of the shoulders on the function actuatingbars 40", 40c and 40, these shoulders, as shown in Figs. 5b and 6, areconsiderably higher than the shoulders on the actuating bars thatareconnected to the type bars and the stop bar 67 is cut away above thefunction bars as shown in dotted lines in Fig. 5, so that these bars,when selected, can rise higher than the type actuating bars. Themovement of the bail which effects the operation of these specialfunction bars is efected not only by its spring 63 but also by the cam61 which, as previously Adescribed, positively completes the movement ofthe bail.

In one setting of the vpermutation bars none of the actuating bars areselected but the main shaft is operated to effect the letter spacemovement of the carriage and, in this way, the spaces between the wordsmay beformed. When any of the special function bars are selected, theoperation of the letter spacing mechanism is prevented by means of alever 159 pivotally mounted upon the rear face of the comb bar 67 andhaving one end arranged above Athe special or function actuating bars.When any one of these bars is selected it shifts the bar 159 against thetension of its spring 160 and moves its opposite end into the ath of anextension 161 on the letter spacing rocker 100. Then when the main shaft56 rotates, the rocker and plunger 102 can not be depressed far enoughto engage the feeding dog 107 with the next tooth of the ratchet 108. Atthe end of the operation the selected function bar is restored and thespring 160 restores the spacing lock-out lever 159 to its normalposition with one end in engagement .with an adjustable eccentric stop162.

Obviously, changes may be made in the details set forth withoutdeparture from the essentials of the invention as defined-in the claims.

I claim as my invention:

1. In combination in a telegraph printer, a set of type bars, actuatingbars connected thereto, a common operating member, a set of permutationbars spring held in normal position for' selecting said actuatingV bars,a set of selectors responsive to received code combination and providedwith yielding spring means for eifecting the selecting movements of saidpermutation bars, means for controlling said selectors, an intermittentoperating cam shaft and means operated thereby for successivelyrestoring said selectors and actuating said common operating member,substantially as described.,

2. In combination in a telegraph printer, a set of type bars, actuatingbars connected thereto, .a common operating member, a set oflongitudinally shiftable, notched permutation bars for selecting saidactuating bars, a set of selectors for shifting said permutation bars,yielding spring means for effecting the bar shifting movements of saidselectors, an intermittently operated shaft, and cams on said shaft forsuccessively locking said permutation bars, restoring. said selectors,actuating said operating member and unlocking said permutation bars,substantially as described.

3. In combination in a telegraph printer, a series of type bars,actuating bars connected thereto, a common striker bar, a set oflongitudinally shift-able, notched permutation bars for selectivelycontrolling the engagement of said actuating bars with said striker bar,a corresponding set of selectors adapted to be conditioned for o)eration in response to received signals, yiel ing spring means foreffecting the operating movements of said selectors to thereby shiftsaid permutation bars, an intermittently o erated shaft and meansactuated thereby orengaging and disengaging said actuating bars andpermutation bars and for operating said striker bar, substantially asdescribed.

4. In combination in a telegraph printer, a set of type bars,individual' actuating bars connected thereto, a common operating bar,

a set of notched permutation bars springheld in normal position andselectively controlling the engagement of said actuating bars and saidoperating bar, a set of selectors spring-actuated to position saidpermutation bars, an intermittently operated shaft, and cams on saidsha-ft for successively locking said permutation bars, restoring saidselectors, engaging said actuated bars therewith, actuating saidoperating bar,disengaging said actuating bars from said permutation barsand unlocking said permutation bars, substantially as described.

5. In combination in a telegraph printer, a set of tvpe bars, individualactuating bars connecte thereto, a common striking bail, a set ofnotched permutation bars springheld in normal position for select-ingthe actuating bars, a locking bail for said perllO mutation bars, a setof selectors spring-aetuated to move said permutation bars, a restoringbail for said selectors, an intermittently operated shaft forsuccessively operating said locking, restoring and striking bails in theorder named, and individualmagnets for controlling said selectors andsaid shaft, substantially as described.

6. In combination in a telegraph printer, a set oftype bars, individualactuating bars connected thereto, acommon striking bail, a set ofnotched permutation bars springheld in normal position for selecting theactuatingbars, a locking bail for said permutation bars, a set ofselectors spring-actuated to move said permutation bars, a restoryingbail for said selectors, springs for effecting the operating movementsof said bails, an intermittently operated shaft, cams on said shaft forpermitting the operation of said locking, restoring and striking bailsin the order named and for restoring the same, latches for holding saidselectors and said shaft in inoperative condition and individual magnetsfor tripping'said latches, substantially as described.

' 7.` In a telegraphprinter, the combination of a set of type bars,actuating bars con'-""'y nected thereto, additional function bars, aset'of permutation bars for selecting said actuating and function bars,springs for effecting the selecting movements 'of said actuating andfunction bars, a striking bail for effecting the operating movementsthereof, and a carriage return controlling member operated by theselecting iovement of one of said function bars, substantially asdcscribed. i

8. In a telegraph printer, the combination of a s'et of type bars',actuating bars connectedthereto, additional function bars, a set ofpermutation bars for selecting said actuating and function bars, springsfor effecting the selecting movements of said actuating and functionbars, a striking bail for effecting the operating movement thereof, acarriage return device controlled by the selccting movement of. oneofsaid function bars,a latch for holding said device in operativeposition, and letter space feeding means for releasing'saidlatch,.substantially as described. i

'79. In a telegraph printer, the combination of a set of type bars,actuating bars connect# ed thereto, additional function bars, a set ofpermutation bars for selecting saidactuating and function bars, springsfor effecting the selecting movements of said actuating and functionbars, a striking bail for effecting the operating movement thereof, anda signalling device operated by the selecting movement of one of saidfunction bars, sub'- stantially asdescribed. i

l0. In combination in a telegraph printer, a set of type bars,individual actuating bars connected thereto, a common striking bail, aset of notched permutation bars spring-held in normal position forselecting the actuating bars, a locking bail for said permutation bars,a set of selectors spring-actuated to move said permutation bars, arestoring bail for said select-ors, a letter space feed mechanism, anintermittently operating shaft, cams on said shaft for successivelyoperating said locking, restoring and striking balls and said letterspace feed, a removable top plate and a paper platen mounted thereon,said letter space feed mechanism comp-rising separable partsI- mountedrespectively on said top plate and the main frame of the printer. l

11. In a telegraph printer, the combination of a set of type bars,actuating bars connected thereto, additional function bars,

a set of permutation bars for selecting said actuating and functionbars, springs for effecting the selecting moven'ients of said actuatingand function bars, a striking bail for effecting the operating movementsthereof, a removable top plate, a paper platen mounted thereon, andletter space, line space and carriage return mechanisms operera'ted bysaid function bars, and each comprising separable parts in one wayengagement and mounted respectively on said top plate and on the mainframe of the machine. 12:/ In combination in a telegraph printer, a setof tvpe bars, individual actuating bars connected thereto, a set ofnotched permutation bars longitudinally movable to align the notchesthereof and select any one of said actuating bars, a corresponding setof selectors adapted to be conditioned in different combinations inresponsey to received signals, avv common actuating member for effectingthe engagement and disengagement of the actuating bars With thepermutation bars and for operating the selected actuating bar, andindividual springs associated with said selectors for effecting thelongitudinal movements of said permutation bars and permitting theconditioning of said selectors in response to the succeeding signal inadvance of the complete operation of said actuating member.

13. In combination in a telegraph printer, a set of type bars, a set oflongitudinally movable notched permutation bars individually spring-heldin normal position, a plurality of actuating bars individuallyselectable by lateral movement into the aligned notches of saidpermutation bars and longitudinally movable to effect the operation of va corresponding type bar, .t set of selectors each individuallyspring-actuated to shift one'of said permutation bars from normal,latches for holding said selectors in retracted position, a commonactuating member for effecting the lateral and longitudinal movements ofsaid actuating bars. a device operated by saidactuating member forrestoring said lselectors for further operation in advance of thecomplete operation of the actuating member, individual magnets fortripping said latches in different combinations in response to receivedsignals and a magnet controlling the operation of said actuating member.

14. In combination in a telegraph printer, a series of type bars,actuating bars connected thereto, a common striker bai', a set oflongitudinally movable notched permutaytion bars for selectivelycontrolling the engagement of any one of said actuating bars with saidstriker bar, and an adjustable bar common to said actuating bars forlimiting the extent of engagement thereof with said striker bar.

l5. In a telegraph printer, the combinallO tion of a series of typebars, actuating bars connected thereto, additional function bars, a setof permutation bars for selecting said actuating and function bars,springs for effecting the selecting movements of said actuating andfunction bars, a striker bar' for effecting the operating movementsthereot, a spuug-actuated czuimge-retuin, controlling member, a latchtripped by the I selecting movement of one of said function bars forholding said carriage-return in retracted position with its spring undertension, said striker bar having means for restoring said member nengagement with said latch, substantially as described.

HOWARD L. KRUM.

